354323561 has 4 divisors (see below), whose sum is σ = 354393732. Its totient is φ = 354253392.

The previous prime is 354323551. The next prime is 354323617. The reversal of 354323561 is 165323453.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 293779600 + 60543961 = 17140^2 + 7781^2 .

It is a cyclic number.

It is not a de Polignac number, because 354323561 - 2¹⁸ = 354061417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (354323551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26870 + ... + 37823.

It is an arithmetic number, because the mean of its divisors is an integer number (88598433).

Almost surely, 2^354323561 is an apocalyptic number.

It is an amenable number.

354323561 is a deficient number, since it is larger than the sum of its proper divisors (70171).

354323561 is an equidigital number, since it uses as much as digits as its factorization.

354323561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70170.

The product of its digits is 32400, while the sum is 32.

The square root of 354323561 is about 18823.4842948908. The cubic root of 354323561 is about 707.6198557490.

The spelling of 354323561 in words is "three hundred fifty-four million, three hundred twenty-three thousand, five hundred sixty-one".